Tax Compliance Services


Our tax compliance service generally refers to the “preparation of original and amended tax returns, claims for refund and tax payment-planning services.” As tax jurisdictions continue to search for revenue sources, the compliance process has become increasingly more difficult and time consuming. The combination of changing tax laws and enhanced penalties for failure to meet the new laws has forced individuals and companies to place greater resources and emphasis on tax professionals. To help clients with the many new and/or expanded tax laws, TCS provides fully comprehensive tax compliance services. Our experience in tax compliance includes many years of preparing returns for both individuals and businesses, simple or complex, large and small. Our expertise includes assisting clients in a wide range of industries and professional service areas such as retail, small business start-ups, real estate ventures, telecommunications, banking, manufacturing, etc.

Our Compliance Approach

As part of our compliance process, for “closed fact” tax planning issues we use the following three step process:

Legislative Law – We review legislative law. This includes review of tax statutes passed by Congress, and if necessary, its legislative history which may include committee and conference reports, predecessor statutes, statements made in floor debates, earlier versions of the bill and the fact of their change, comments bill sponsors make upon introduction of the bill, etc. We carefully select the extent and depth of legislative law research based on your facts and the tax issue under review.

Administrative Law – We review administrative law, the IRS position on tax law to fully understand the IRS position on your tax issue. The IRS has provided in the past years anywhere from 10-20 different types and forms of guidance. Examples of the different types and forms of guidance we may review include Treas. Reg., Rev. Rulings, Rev. Procedures, Notices and Announcements, Private letter rulings, Technical Advice Memorandums, General Counsel Memoranda, Chief Counsel Advice, Determination Letters, etc.

Judicial Law – We then carefully examine judicial law where a taxpayer has challenged the IRS. We review the usefulness of tax holdings from other tax cases by applying, if possible, the holding to your facts. This is known as analogical legal reasoning. We review Tax Court, District Court, Court of Federal Claims, and Supreme Court rulings to determine the applicable rules and doctrines under judicial tax law.


Types of Tax Returns Prepared

Individuals – We prepare all of the required individual tax returns and additional forms required for our clients. This includes form 1040, schedules A, B, C, D, E, etc. and the many any additional forms required. As part of the compliance process we review prior year tax returns to better understand the tax issues relevant for our clients.

Regular Corporations – We prepare all the required corporate tax returns including any additional statements that need to be added to the tax return. As part of the compliance process we review prior year tax returns to better understand the tax issues relevant for our clients.

Pass through Corporations – We prepare all the required corporate tax returns including any additional statements that need to be added to the tax return. As part of the compliance process we review prior year tax returns to better understand the tax issues relevant for our clients.

Limited Liability Company’s – We prepare all the required LLC tax returns including any additional statements that need to be added to the tax return. As part of the compliance process we review prior year tax returns to better understand the tax issues relevant for our clients.

Partnerships – We prepare all the required partnership tax returns including any additional statements that need to be added to the tax return. As part of the compliance process we review prior year tax returns to better understand the tax issues relevant for our clients.

State Tax Returns – We prepare all the required state tax returns including any additional statements that need to be added to the tax return. As part of the compliance process we review prior year tax returns to better understand the tax issues relevant for our clients.

In-addition, we prepare tax returns required for foreign individuals and companies that are required to file a U.S. tax return including U.S. informational controlled foreign corporation tax returns. Many of these tax returns deal with complex foreign and U.S. tax issues including repatriation rules, subpart F inclusions, PFIC, PE rules, etc.


Our Tax Compliance Approach

Tax Preparation Software and Tools – We use state of the art tax preparation software and tools. We create a detailed work plan with descriptions and dates for your deliverables, where we agree on the steps required for your involvement and review. We use electronic work papers using multiple income tax compliance platforms depending on your needs, and work closely with each and every client to ensure the accuracy and the timely filing of all tax returns.

Let us help lift your tax compliance burden with the tax experience needed to lower your compliance costs and through our expertise lower your tax return liability.

Contact us and let us work with you!

Mike Ford


“I’ve known James Duffy for over thirty years and rely on him for rock solid tax and accounting advice and the very latest in clever AND LEGITIMATE solutions to complex situations. I am very comfortable referring him to my associates and friends and know they will receive the same high standard of care he delivers to his national clients, and to me. He never fails to go the extra mile and has always been a proactive part of every situation I have dragged him into. While many consultants see clients as mere engagements his style is much more comprehensive and it’s not unusual at all to get an email from him at an odd hour treating the topic we’ve been kicking around. I am confident that he is the best of the best.”

Real Estate Professional

2014-05-16T05:01:37+00:00
“I’ve known James Duffy for over thirty years and rely on him for rock solid tax and accounting advice and the very latest in clever AND LEGITIMATE solutions to complex situations. I am very comfortable referring him to my associates and friends and know they will receive the same high standard of care he delivers to his national clients, and to me. He never fails to go the extra mile and has always been a proactive part of every situation I have dragged him into. While many consultants see clients as mere engagements his style is much more comprehensive and it’s not unusual at all to get an email from him at an odd hour treating the topic we’ve been kicking around. I am confident that he is the best of the best.” Real Estate Professional

Raffaele Mari


“James is a seasoned tax professional who has excellent technical and communication skills. He is a quick study and focuses on providing value-added services. He is a team player who is willing to do whatever it takes to deliver results in a cost-effective manner. I have enjoyed the opportunity to work with James and am confident that anyone would be very satisfied with his work.”

Managing Director, Global Wealth Management

2014-05-14T12:12:00+00:00
“James is a seasoned tax professional who has excellent technical and communication skills. He is a quick study and focuses on providing value-added services. He is a team player who is willing to do whatever it takes to deliver results in a cost-effective manner. I have enjoyed the opportunity to work with James and am confident that anyone would be very satisfied with his work.” Managing Director, Global Wealth Management

Mona Sheung


“James is a very hard working and diligent, someone I respect and trust!"

ControllerClient Service Manager at FIOH Global Asset Management and Strategies, LLC

2014-05-14T12:21:25+00:00
“James is a very hard working and diligent, someone I respect and trust!" ControllerClient Service Manager at FIOH Global Asset Management and Strategies, LLC

Dirk Wierema


“As the Corporate Controller at Ampro Computers, I hired James to prepare and update four years of amended corporate Federal and State tax returns. While on this project James expertise in Federal and State taxes helped to defer a significant tax liability for our company. James was very easy to work with and took the time to explain complex tax regulations in a way that was easy to understand. I would highly recommend James.”

Controller – Zetta, Inc.

2014-05-14T12:15:06+00:00
“As the Corporate Controller at Ampro Computers, I hired James to prepare and update four years of amended corporate Federal and State tax returns. While on this project James expertise in Federal and State taxes helped to defer a significant tax liability for our company. James was very easy to work with and took the time to explain complex tax regulations in a way that was easy to understand. I would highly recommend James.” Controller – Zetta, Inc.

Juan Carlos Villalobos


“I contacted James Duffy at Tax Client Services to have him prepare the financial statements and tax returns for Aapex Financial Solutions, LLC. He did a great job preparing my friend’s tax return, significantly reducing their tax liability. They were impressed on how detailed he was as he looked at all of the tax planning techniques allowed under the tax law. My friends liked that he looks at your prior year tax returns to determine if there are any missed tax deductions without any up-front charge. He then found a lot of tax savings! With that background I had no issues asking for his assistance on this project. He helped me on issues with the California Residential Mortgage division, the US department of HUD, reviewed my prior year financial statements and tax returns, etc. He identified important issues in the prior and current year tax returns. It is a given that I will continue with his services. He is a very accomplished professional and a pleasure to work with. I highly recommend Tax Client Services!”

President at Aapex Financial Solutions, LLC

2014-05-14T12:10:46+00:00
“I contacted James Duffy at Tax Client Services to have him prepare the financial statements and tax returns for Aapex Financial Solutions, LLC. He did a great job preparing my friend’s tax return, significantly reducing their tax liability. They were impressed on how detailed he was as he looked at all of the tax planning techniques allowed under the tax law. My friends liked that he looks at your prior year tax returns to determine if there are any missed tax deductions without any up-front charge. He then found a lot of tax savings! With that background I had no issues asking for his assistance on this project. He helped me on issues with the California Residential Mortgage division, the US department of HUD, reviewed my prior year financial statements and tax returns, etc. He identified important issues in the prior and current year tax returns. It is a given that I will continue with his services. He is a very accomplished professional and a pleasure to work with. I highly recommend Tax Client Services!” President at Aapex Financial Solutions, LLC

Benny Lee


“A person’s expertise can be differentiated in terms of the following classes: Novice, Beginner, Intermediate, Expert, and World-Class Guru.
My observation of Jim’s practice and understanding of all tax intricacies both from corporate and individual would place him in the class of a World-Class Guru.”

Vice President, Information Technology – East West Bank

2014-05-14T12:01:56+00:00
“A person’s expertise can be differentiated in terms of the following classes: Novice, Beginner, Intermediate, Expert, and World-Class Guru. My observation of Jim’s practice and understanding of all tax intricacies both from corporate and individual would place him in the class of a World-Class Guru.” Vice President, Information Technology – East West Bank

Pat Powers


“James identified a difficult and complex tax issue that required resolution. This particular issue was unusual and potentially quite troublesome. James supervised analysis and resolution of this issue in a very professional manner. His handling of the issue demonstrated a very good grasp of highly complex legal issues balanced by sound and mature judgment.”

Tax Partner at Baker & McKenzie

2014-05-14T12:05:55+00:00
“James identified a difficult and complex tax issue that required resolution. This particular issue was unusual and potentially quite troublesome. James supervised analysis and resolution of this issue in a very professional manner. His handling of the issue demonstrated a very good grasp of highly complex legal issues balanced by sound and mature judgment.” Tax Partner at Baker & McKenzie

George Baker


“James was hired because of his outstanding tax expertise. He worked on tax issues related to financial statement documents backing the bank’s submission of its 10-K, 10-Q and other SEC submissions. He was responsible for tax compliance and filings for a $6 Billion market cap company. His knowledge of the tax law led to substantial savings for the bank. One example was the bank’s foreign earnings repatriation strategy–$8 million in federal taxes were saved as well as some $2 million in state taxes. James is a master at sorting through details on tax issues and used this to reach correct tax applications to the benefit of the bank.”

Senior Vice President at Zions Bank

2014-05-14T12:04:36+00:00
“James was hired because of his outstanding tax expertise. He worked on tax issues related to financial statement documents backing the bank’s submission of its 10-K, 10-Q and other SEC submissions. He was responsible for tax compliance and filings for a $6 Billion market cap company. His knowledge of the tax law led to substantial savings for the bank. One example was the bank’s foreign earnings repatriation strategy–$8 million in federal taxes were saved as well as some $2 million in state taxes. James is a master at sorting through details on tax issues and used this to reach correct tax applications to the benefit of the bank.” Senior Vice President at Zions Bank

Howard Chen


“Jim has strong technical skills in the tax field. He is very independent and hard working. Jim gets the job done!”

VP, Corporate Development and Strategy at Bank of the West

2014-05-14T12:14:08+00:00
“Jim has strong technical skills in the tax field. He is very independent and hard working. Jim gets the job done!” VP, Corporate Development and Strategy at Bank of the West

Silina Dudkina

I have great respect for James and his firm Tax Client Services. He is personable, trustworthy and frankly brilliant in his field. His tax and accounting experience, knowledge and ethical character are of the highest standards. He has the ability to focus on key tax issues that make a difference that is rarely seen these days. Its hard to find a CPA who is highly competent, who you can trust, and one that will not over-charge you! His many strengths include how determined and focused he is in taking care of his clients tax and accounting problems. James is a polished and experienced tax professional, one whom you can count on to go the extra mile and who will do everything possible to ensure his clients pay the absolute minimal amount of taxes possible. I highly recommend this tax professional!

Studying to be a Nurse

2014-05-14T12:09:40+00:00
I have great respect for James and his firm Tax Client Services. He is personable, trustworthy and frankly brilliant in his field. His tax and accounting experience, knowledge and ethical character are of the highest standards. He has the ability to focus on key tax issues that make a difference that is rarely seen these days. Its hard to find a CPA who is highly competent, who you can trust, and one that will not over-charge you! His many strengths include how determined and focused he is in taking care of his clients tax and accounting problems. James is a polished and experienced tax professional, one whom you can count on to go the extra mile and who will do everything possible to ensure his clients pay the absolute minimal amount of taxes possible. I highly recommend this tax professional! Studying to be a Nurse

Wesley Wakeford


“James Duffy has advised me on several tax matters. I give him my highest recommendation for his knowledge of tax law, for having the highest integrity and also for being a true gentleman. James is a very sharp intellectual and is also a very creative professional. If you need tax help, you will not go wrong with James Duffy.”

Attorney

2014-05-14T12:07:08+00:00
“James Duffy has advised me on several tax matters. I give him my highest recommendation for his knowledge of tax law, for having the highest integrity and also for being a true gentleman. James is a very sharp intellectual and is also a very creative professional. If you need tax help, you will not go wrong with James Duffy.” Attorney

Blake Christian


“James hired our firm to evaluate UCB’s California Enterprise Zone Credits. James proved to be a highly technical, high quality, tax executive and was very helpful in managing a complex, multi-year, project. With James assistance, we were able to jointly identify over $6M of supplemental tax savings for his bank.”
Tax Partner, HCVT LLP

2014-05-14T11:57:59+00:00
“James hired our firm to evaluate UCB’s California Enterprise Zone Credits. James proved to be a highly technical, high quality, tax executive and was very helpful in managing a complex, multi-year, project. With James assistance, we were able to jointly identify over $6M of supplemental tax savings for his bank.” Tax Partner, HCVT LLP

Irina Butorina



“James has been helping me with my taxes since 2010 and I am happy about how effective his solutions are and most important – I am very happy with the money he saves for me. His ability to focus on taxes like nobody I have ever seen is actually amazing. He asks a lot of questions always looking for ways to lower my taxes. Don’t be surprised to get detailed emails discussing your issues without any charge on his part at odd hours of the day or night. He cares about his work and I have been always amazed at how he comes up with tax ideas that really work and are legal which is a very important thing for me. He is friendly and fast thinking and returns your phone call promptly, is easy to reach, and will make sure you pay the least amount of taxes possible. He is a God sent tax geek and I would highly recommend James to anyone of my friends.”
Doctor of Medicine

2014-05-14T12:16:15+00:00
“James has been helping me with my taxes since 2010 and I am happy about how effective his solutions are and most important – I am very happy with the money he saves for me. His ability to focus on taxes like nobody I have ever seen is actually amazing. He asks a lot of questions always looking for ways to lower my taxes. Don’t be surprised to get detailed emails discussing your issues without any charge on his part at odd hours of the day or night. He cares about his work and I have been always amazed at how he comes up with tax ideas that really work and are legal which is a very important thing for me. He is friendly and fast thinking and returns your phone call promptly, is easy to reach, and will make sure you pay the least amount of taxes possible. He is a God sent tax geek and I would highly recommend James to anyone of my friends.” Doctor of Medicine

Why TCS?

Tax Client Services (TCS) is dedicated to helping you with all of your tax and accounting needs, including maximizing your after-tax cash flow by minimizing your tax liability.

Experience

James was born in Seattle, Washington though he spent the greater portion of his early years in Hawaii. Completing his Bachelor of Economics from the University of Santa Barabar, James was hired by PricewaterhouseCoopers.

Selecting a Tax Professional

When you’re looking for a talented and skillful tax professional, the one thing you absolutely need is to select someone who is well versed in tax law. Not requiring this could cost you greatly in both lost cash flow and additional stress...